CN108588599A - A kind of ultralight high-strength aluminum alloy heat treatment method - Google Patents
A kind of ultralight high-strength aluminum alloy heat treatment method Download PDFInfo
- Publication number
- CN108588599A CN108588599A CN201810286597.9A CN201810286597A CN108588599A CN 108588599 A CN108588599 A CN 108588599A CN 201810286597 A CN201810286597 A CN 201810286597A CN 108588599 A CN108588599 A CN 108588599A
- Authority
- CN
- China
- Prior art keywords
- aluminium alloy
- aging
- under
- time
- temperature
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22F—CHANGING THE PHYSICAL STRUCTURE OF NON-FERROUS METALS AND NON-FERROUS ALLOYS
- C22F1/00—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working
- C22F1/04—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working of aluminium or alloys based thereon
- C22F1/043—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working of aluminium or alloys based thereon of alloys with silicon as the next major constituent
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C21/00—Alloys based on aluminium
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C21/00—Alloys based on aluminium
- C22C21/02—Alloys based on aluminium with silicon as the next major constituent
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22F—CHANGING THE PHYSICAL STRUCTURE OF NON-FERROUS METALS AND NON-FERROUS ALLOYS
- C22F1/00—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working
- C22F1/04—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working of aluminium or alloys based thereon
Abstract
A kind of ultralight high-strength aluminum alloy heat treatment method, aluminium alloy refers to the aluminium alloy for having aging hardening behavior in the method, specifically refer to Al Si x RE based alloys, wherein RE represents one or more in 17 kinds of rare earth Scs, Y, La, Ce, Pr, Nd, Pm, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm, Yb and Lu, x is 0.5 10wt%, when a variety of rare earth elements coexist, each rare earth element mass fraction is impartial；This method content is：Under the pressure that the aluminium alloy is applied to 0.5 6GPa under cubic hinge press, under conditions of temperature is 0.5 0.8Tm, high pressure-temperature solid solution, solution time is 0.5 4 hours；Removal pressure after processing, is directly cooled with circulating water, and obtains metastable state supersaturated solid solution, laggard low temperature aging processing, temperature is 50 150 DEG C, and the time is 2 10 hours, and a large amount of Nanoalloy phases are quickly precipitated.The method of the present invention operating procedure is simple, and treatment conditions are easy to control, and aging time is short, and aging temp is low.
Description
Technical field
The present invention relates to technical field of metal heat treatment, more particularly to a kind of ultralight high-strength aluminum alloy heat treatment method.
Background technology
Solution strengthening, superfluous mutually strengthen with Precipitation reinforcing is three kinds of main schedule of reinforcements of aluminium alloy.And this three
In the main schedule of reinforcement of kind, Precipitation invigoration effect is especially notable.At the final mechanical property of aluminium alloy and the heat of alloy
Science and engineering skill is closely related.In recent years, for inhomogeneity aluminium alloy, different types of heat treatment process is developed in succession.It is such as classified solid
Molten, dual timeliness, vibrations heat treatment and strain heat treatment etc. occur in succession.It sums up, the mesh of above-mentioned all heat treatment process
Be exactly the volume fraction for increasing Precipitation hardening constituent, optimize the pattern of precipitated phase.The purpose of the solution treatment of alloy is exactly
The metallic compound etc. that alloy element generates in process of setting is distributed in alloy substrate as far as possible, is formed oversaturated
Solid solution.And the purpose of timeliness is exactly that the supersaturated solute haved already dissolved into alloy is gradually precipitated again.The heat treatment of alloy
Best mode be：Solid solution process increases the degree of supersaturation of alloying element as far as possible, and ag(e)ing process increases precipitated phase point as far as possible
Number.
In aluminium alloy, the diffusion of alloy element and decomposition-generating process of alloy phase belong to typical solid-state phase changes,
Therefore it needs to keep longer time when solid solution and ageing treatment.The especially high-performance aluminium alloy of wide further investigation in recent years
It is general to be handled by the way of solid solution added-time effect (T6 processing), higher mechanical property can be obtained.But this tradition T6 heat
Processing method has following deficiency：
1, since the atomic radius of alloy element is too big, diffusion velocity is slow, and therefore, timeliness when generally sets temperature
Due to overlong time when setting at 180 DEG C or more, and being less than 180 DEG C, it is difficult to observe ageing strengthening phenomenon；
2, since the temperature of timeliness is higher, the degree of super saturation of solute reduces, and therefore, the volume fraction of precipitation strength phase drops
It is low, strengthen decreased effectiveness；
3, the process temperature of traditional aging is excessively high, overlong time, time-consuming, energy consumption.At heat recorded in existing professional standard
Reason system, Brinell hardness can only achieve 90N/mm2There is sticking phenomenon in left and right, relatively low be easy to cause in process of hardness, into
And yield rate is reduced, while being heat-treated that energy consumption is higher, the use scope of aluminium alloy is seriously affected, production cost is increased.
Invention content
The present invention overcomes deficiencies in the prior art, provide a kind of ultralight high-strength aluminum alloy heat treatment method, the party
Method can improve the hardness of aluminium alloy, mitigate the weight of aluminium alloy, obtain ultralight, super-strength aluminium alloy, while can reduce again
Power consumption of polymer processing.
In order to solve above-mentioned technical problem, the present invention is achieved by the following technical solutions：
A kind of ultralight high-strength aluminum alloy heat treatment method, aluminium alloy refers to having aging hardening behavior in the method
Aluminium alloy, in particular to Al-Si-x RE based alloys, wherein RE represent 17 kinds of rare earth Scs, Y, La, Ce, Pr, Nd, Pm,
It is one or more in Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm, Yb and Lu, x 0.5-10wt%, when a variety of rare earth elements coexist
When, each rare earth element mass fraction is impartial；
The method content is as follows：
Under the pressure that the aluminium alloy is applied to 0.5-6GPa under cubic hinge press, temperature is the condition of 0.5-0.8Tm
Under, high pressure-temperature solid solution, solution time is 0.5-4 hours, and wherein Tm is alloy melting point；Removal pressure after processing, directly with following
Aluminium alloy described in ring water cooling obtains metastable state supersaturated solid solution, then carries out low temperature aging processing, aging temp 50-
150 DEG C, aging time is 2-10 hour, and metastable state supersaturated solid solution is made quickly to be precipitated in low temperature aging processing procedure
A large amount of Nanoalloy phases.
Due to the adoption of the above technical scheme, a kind of ultralight high-strength aluminum alloy heat treatment method provided by the invention, and it is existing
Having technology to compare has such advantageous effect：
1, the method for the present invention operating procedure is simple, and treatment conditions are easy to control, energy saving, and aging time is short, timeliness temperature
Spend low, less energy consumption.
2, the method for the present invention is by increasing the method for solid solubility in aluminium of rare earth, alloy element under high pressure-temperature, into
One step improves degree of supersaturation of the alloy element in aluminum substrate.
3, the method for the present invention outside plus stress field under, formed metastable state supersaturated solid solution, ag(e)ing process at low temperature into
Row, can substantially reduce solid solubility of the alloy element under atmospheric pressure at room, and score is precipitated in the volume to improve hardening constituent.
4, the method for the present invention is compared with traditional T6 processing methods, and the hardness of the alloy handled by the method for the present invention resists
Tensile strength and elongation percentage all significantly improve, and hardness improves 25% or more, and yield strength and fracture strength improve 20% or more, extend
Rate improves about 80% or more.
Description of the drawings
Fig. 1 is to imitate T6 processing the Al-5Si-0.6Nd alloy traditional solution added-time hardening is bent with treated in embodiment 1
Line chart.
Fig. 2A l-3Si-0.5La alloys imitate T6 processing and treated hardening curve in embodiment 2 with the traditional solution added-time
Figure.
Fig. 3 Al-6Si-10Sm alloys imitate T6 processing and treated hardening curve in embodiment 3 with the traditional solution added-time
Figure.
Fig. 4 Al-6Si-0.5Y-0.5Gd alloys are hardened with treated in the effect T6 processing of traditional solution added-time and embodiment 4
Curve graph.
Specific implementation mode：
Present invention is further described in detail with specific implementation mode below in conjunction with the accompanying drawings：
Embodiment 1
Al-5Si-0.6Nd (wt.%, mass percent) alloy is taken, under the pressure for applying 6GPa under cubic hinge press,
0.80Tm (i.e. under 520 DEG C of temperature conditions) is dissolved, and solution time is 0.5 hour, and removal pressure after processing directly uses recirculated water
Cooling, then in 50 DEG C of ageing treatments, aging time is 5 hours, you can reach peak hardness, obtains highest mechanical property,
Highest Vickers hardness reaches 192HV (load 50g carries time 15s).It is the present embodiment and tradition T6 processing shown in Fig. 1
Hardness balance hardening curve figure.
Embodiment 2
Al-3Si-0.5La (wt.%, mass percent) alloy is taken, under the pressure for applying 2GPa under cubic hinge press,
0.50Tm (i.e. under 320 DEG C of temperature conditions) is dissolved, and solution time is 1 hour, and removal pressure after processing directly uses recirculated water cooling
But, then in 150 DEG C of timeliness, aging time is 6 hours, you can reaches higher hardness, obtains high mechanical property, highest
Vickers hardness reach 183.65HV (load 50g, carry of time 15s), as shown in Figure 2.
Embodiment 3
Al-6Si-10Sm (wt.%, mass percent) alloy is taken, under the pressure for applying 0.5GPa under cubic hinge press,
0.60Tm (i.e. under 390 DEG C of temperature conditions) is dissolved, and solution time is 4 hours, and removal pressure after processing directly uses recirculated water cooling
But, then in 100 DEG C of timeliness, aging time is 8 hours, you can reaches higher hardness, obtains high mechanical property, highest
Vickers hardness reach 147HV (load 50g, carry of time 15s), as shown in Figure 3.
Embodiment 4
Al-6Si-0.5Y-0.5Gd (wt.%, mass percent) alloy is taken, applies the pressure of 4GPa under cubic hinge press
Under power, 0.70Tm (i.e. under 455 DEG C of temperature conditions) solid solutions, solution time is 1 hour, removal pressure after processing, directly with following
Ring water cooling, then in 80 DEG C of timeliness, aging time is 10 hours, you can reaches higher hardness, obtains high mechanical property
Can, highest Vickers hardness reaches 157HV (load 50g carries time 15s), as shown in Figure 4.
Claims (1)
1. a kind of ultralight high-strength aluminum alloy heat treatment method, it is characterised in that：Aluminium alloy refers to timeliness in the method
The aluminium alloy, in particular to Al-Si-x RE based alloys of hardening characteristics, wherein RE represent 17 kinds of rare earth Scs, Y, La, Ce,
It is one or more in Pr, Nd, Pm, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm, Yb and Lu, x 0.5-10wt%, when a variety of dilute
When earth elements coexist, each rare earth element mass fraction is impartial；
The method content is as follows：
It is high under conditions of temperature is 0.5-0.8Tm under the pressure that the aluminium alloy is applied to 0.5-6GPa under cubic hinge press
Super pressure-high temperature is dissolved, and solution time is 0.5-4 hours, and wherein Tm is alloy melting point；Removal pressure after processing, directly uses recirculated water cooling
The aluminium alloy obtains metastable state supersaturated solid solution, then carries out low temperature aging processing, and aging temp is 50-150 DEG C,
Aging time is 2-10 hour, so that metastable state supersaturated solid solution is quickly precipitated in low temperature aging processing procedure and largely receives
Meter He Jin phases.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810286597.9A CN108588599A (en) | 2018-03-30 | 2018-03-30 | A kind of ultralight high-strength aluminum alloy heat treatment method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810286597.9A CN108588599A (en) | 2018-03-30 | 2018-03-30 | A kind of ultralight high-strength aluminum alloy heat treatment method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108588599A true CN108588599A (en) | 2018-09-28 |
Family
ID=63624112
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810286597.9A Pending CN108588599A (en) | 2018-03-30 | 2018-03-30 | A kind of ultralight high-strength aluminum alloy heat treatment method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108588599A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102877012A (en) * | 2012-09-13 | 2013-01-16 | 燕山大学 | Method for improving plasticity of super hard aluminum alloy |
| CN104233015A (en) * | 2014-08-28 | 2014-12-24 | 机械科学研究总院（将乐）半固态技术研究所有限公司 | High-strength/toughness aluminum alloy brake drum and preparation method thereof |
| CN104561688A (en) * | 2015-01-26 | 2015-04-29 | 上海交通大学 | Heat-resistant cast aluminum alloy and gravity casting method thereof |
| CN106435418A (en) * | 2016-11-23 | 2017-02-22 | 重庆大学 | Heat treatment technology for improving intercrystalline corrosion resisting performance and stress corrosion resisting performance of 7-series aluminum alloy |
| EP3299482A1 (en) * | 2016-09-21 | 2018-03-28 | Aleris Aluminum Duffel BVBA | High-strength 6xxx-series forging material |
-
2018
- 2018-03-30 CN CN201810286597.9A patent/CN108588599A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102877012A (en) * | 2012-09-13 | 2013-01-16 | 燕山大学 | Method for improving plasticity of super hard aluminum alloy |
| CN104233015A (en) * | 2014-08-28 | 2014-12-24 | 机械科学研究总院（将乐）半固态技术研究所有限公司 | High-strength/toughness aluminum alloy brake drum and preparation method thereof |
| CN104561688A (en) * | 2015-01-26 | 2015-04-29 | 上海交通大学 | Heat-resistant cast aluminum alloy and gravity casting method thereof |
| EP3299482A1 (en) * | 2016-09-21 | 2018-03-28 | Aleris Aluminum Duffel BVBA | High-strength 6xxx-series forging material |
| CN106435418A (en) * | 2016-11-23 | 2017-02-22 | 重庆大学 | Heat treatment technology for improving intercrystalline corrosion resisting performance and stress corrosion resisting performance of 7-series aluminum alloy |
Non-Patent Citations (1)
| Title |
|---|
| M. SZYMANRK ET AL.: "《AI-Si-RE ALLOYS CAST BY THE RAPID SOLIDIFICATION PROCESS》", 《ARCHIVES OF METALLURGY AND MATERIALS》 * |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106282862B (en) | Improve the method for aluminum based composite material enhanced by granules in situ structure property uniformity | |
| CN108823472A (en) | A kind of High Strength and Tenacity Al-Zn-Mg-Cu Aluminum Alloy and its heat treatment method | |
| CN108754256A (en) | Non-heat treated reinforcing high-strength and high ductility die casting aldray and preparation method thereof | |
| CN101205578A (en) | High-strength high-ductility corrosion-resistant Al-Zn-Mg-(Cu) alloy | |
| CN101463442A (en) | Casting magnesium alloy containing Ag and heavy rare earth and preparation thereof | |
| CN109706336B (en) | Low-cost preparation method of ultrafine-grained high-strength plastic rare earth magnesium alloy | |
| CN114250393B (en) | High-strength high-modulus biphase magnesium-lithium alloy and preparation method thereof | |
| CN108754257A (en) | A kind of high-strength/tenacity aluminum alloy forging and preparation method thereof | |
| CN114535478A (en) | Rotary die forging preparation method of ultralight high-strength magnesium-lithium alloy | |
| CN114411072A (en) | Aluminum alloy material with gradient structure and preparation method thereof | |
| CN112095038B (en) | Method for increasing number of disperse phases in aluminum alloy | |
| CN108588599A (en) | A kind of ultralight high-strength aluminum alloy heat treatment method | |
| CN102877014B (en) | Thermal treatment method suitable for magnetism alloy with age-hardening property | |
| CN109112374B (en) | A kind of high-strength magnesium-tin-zinc-lithium-sodium alloy and preparation method thereof | |
| CN102061414B (en) | High-plasticity magnesium alloy and preparation method thereof | |
| CN108220705B (en) | Preparation method of lanthanum-containing corrosion-resistant aluminum alloy material | |
| CN108048699B (en) | Preparation method of neodymium and cerium-containing corrosion-resistant die-casting aluminum alloy | |
| CN108048705B (en) | Preparation method of yttrium-containing corrosion-resistant aluminum alloy material | |
| CN107858566B (en) | A kind of heat treatment method of cast aluminium alloy gold | |
| CN108070755B (en) | Preparation method of corrosion-resistant die-casting aluminum alloy containing samarium and yttrium | |
| CN115896572B (en) | High-strength high-speed dissolved magnesium alloy and preparation method thereof | |
| CN108048704B (en) | Preparation method of lanthanum and ytterbium-containing corrosion-resistant aluminum alloy material | |
| CN109881065A (en) | High-toughness heat-resistant Mg-Gd-Er alloy and preparation method thereof suitable for low pressure casting | |
| CN103343307A (en) | Heat treatment method of vacuum die-cast rare earth magnesium alloy | |
| CN109706359B (en) | High-toughness single-phase cast magnesium alloy and preparation method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20180928 |